--
and to note down regularly-the oxygen
dosage. the percentage of carbon dioxide, the
humidity, and the temperature inside the
cabin. Thus our nearly five hours of descent
did not seem long to us.
By a depth of 1,500 feet the darkness was
total. Inside the cabin we had turned on
only a small light. just sufficient for read
ing the instruments. The temperature of the
water was falling, and the cabin began to feel
cold.
"Say. Ion, suppose we put on our dry
clothing."
Walsh looked at me somewhat doulbtfully.
Not a tall man, he can move about easily in
the cabin, while I should have to open the port
to stretch my arms. Yet I have dived so often
that I feel perfectly at home. Besides. I had
the cabin made with a diameter of six feet
four inches-almost my height.
According to our program we were to re
main nine hours in the cabin practically with
out moving, seated on small stools. It was
wise to take all possible precautions against
the cold that awaited us farther down. Warm
clothes had been placed in the cabin, and it
PAINTINGBY NATIONAL GEOGRAPHIC
ARTIST IOHN W. OTHERS